A) \[15\frac{2}{3}\] secs
B) \[16\frac{1}{2}\] secs
C) \[15\frac{1}{2}\] secs
D) \[16\frac{2}{3}\] secs
Correct Answer: D
Solution :
Time \[=\frac{Length\text{ }of\text{ }\left( train\text{ }+\text{ }platform \right)}{Speed\text{ }of\text{ }train}\] Speed of train = 54 kmph \[=\left( \frac{54\times 5}{18} \right)\] m/sec =15 m/sec \[\therefore \] Time = \[\frac{120+130}{15}\] \[=\frac{250}{15}=\frac{50}{3}=16\frac{2}{3}\] seconds
You need to login to perform this action.
You will be redirected in
3 sec
